High-barrier multi-anti-counterfeiting high-speed packaging film

Abstract

The utility model provides a high-barrier multi-anti-counterfeiting high-speed packaging film. The high-barrier multi-anti-counterfeiting high-speed packaging film comprises a printing base material layer, an anti-counterfeiting ink layer, an adhesive layer, a milky white film, an adhesive layer and an aluminized film which are sequentially arranged from outside to inside, the milky-white film is used as the surface whiteness enhancing layer, the aluminized film is used as the food contact layer and the heat sealing layer, the patterns on the printing surface are subjected to special anti-counterfeiting effect design and a digital encryption anti-counterfeiting technology, and the milky-white film is used for improving the whiteness of the printed patterns and the contrast ratio of the anti-counterfeiting patterns; the difficulty of plagiarism and copying of products by counterfeit manufacturers can be greatly improved, company brand protection personnel can quickly identify certified products and counterfeit products on the market more conveniently, and product brands are effectively protected. The high-barrier and ultralow-temperature aluminum-plated film is used in the inner layer, so that the shelf life of products is prolonged, the processing speed of the packaging film on packaging equipment is increased, the taste and flavor of contents are better protected, and the satisfaction degree of consumers and the re-purchase desire are improved.

Description

Technical Field

[0001] This utility model belongs to the field of packaging roll film, specifically relating to a high-barrier, multi-layer anti-counterfeiting, high-speed packaging film. Background Technology

[0002] Crispy candy is a popular confectionery product during festivals and celebrations. Thanks to decades of brand building and market operations, crispy candy holds a leading position in the market. However, this has also led to a flood of counterfeit and substandard products. These counterfeit goods, sold at low prices and bearing fake brands, erode consumer rights and disrupt the legitimate market. The counterfeit market not only harms the interests of legitimate businesses and consumers but also poses a serious threat to social and economic development.

[0003] Meanwhile, technological advancements have also inadvertently fueled the production of counterfeit goods. For instance, highly realistic printing and manufacturing techniques have made counterfeit goods increasingly difficult to distinguish from their appearance, which to some extent improves their "quality" and attracts more consumers.

[0004] Crispy candy is a traditional Chinese confectionery. Its main ingredients include peanuts, sugar, sesame seeds, and vegetable oil. It is prepared through processes such as high-temperature roasting, stretching, drying, and cutting. Because peanuts, sesame seeds, vegetable oil, and sugar are rich in fats and have volatile aromas, the packaging design must consider reducing oxygen permeability and protecting the aroma from dissipation. The high-temperature drying process creates a crisp texture, requiring the packaging film to minimize water vapor permeability; otherwise, the crispy candy will become soft and crumbly.

[0005] Because the consumption of crispy candies is mainly concentrated during the Spring Festival, manufacturers need to concentrate on large-scale production from September to December before the holiday. In order to ensure that consumers can enjoy the best crispy and sesame-flavored taste, it is impossible to stock up in warehouses or distribution channels in advance. Therefore, the "peak and trough" phenomenon in the production of this product is very obvious, requiring manufacturers to significantly increase their production capacity within the next 4-6 months.

[0006] The most direct and effective way to increase production capacity is to increase the speed of packaging equipment. Increased speed means a shorter heat-sealing time for the packaging film, which in turn reduces the overall energy transferred to the heat-sealing layer. This necessitates a packaging film that can seal at lower energy levels, i.e., lower temperatures. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a high-barrier, multi-layer anti-counterfeiting, high-speed packaging film.

[0008] The purpose of this invention is to provide a high-barrier, multi-layer anti-counterfeiting, high-speed packaging film. This packaging film is mainly used in the food packaging field. It has anti-counterfeiting patterns that cannot be copied or imitated and are easy to verify and detect. It also has excellent oxygen and water vapor barrier properties, better protects the taste of the contents, and has a lower heat-sealing temperature, which greatly improves the processing speed of the packaged contents.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A high-barrier, multi-layer anti-counterfeiting high-speed packaging film includes: a printed substrate layer, an anti-counterfeiting ink layer, an adhesive layer, a milky white film, an adhesive layer, and an aluminized film arranged sequentially from the outside to the inside; the anti-counterfeiting ink layer is provided with at least two anti-counterfeiting patterns among split lines, super-line background patterns, and digital encrypted graphics.

[0011] Preferably, the printed substrate layer is a BOPET film with a thickness of 11 to 13 micrometers.

[0012] Preferably, the milky white film is a milky white PE film with a thickness of 12-18 micrometers.

[0013] Preferably, the aluminized film is an aluminized CPP film with a thickness of 20-30 micrometers.

[0014] Preferably, the surface patterns on the anti-counterfeiting ink layer, other than the split lines, super-line background patterns, and digital encrypted graphics, form white areas, and the whiteness of the white areas is 75-85%.

[0015] Preferably, the oxygen permeability of the packaging film is <5.0 cm. 3 / (m 2 •d•0.1MPa), water vapor transmission rate <0.5g / m 2 ·d.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] This utility model provides a high-barrier, multi-layered anti-counterfeiting, high-speed packaging film, which is made by specially composite printing substrate layer, anti-counterfeiting ink layer, adhesive layer, milky white film, adhesive layer, and aluminized film. The anti-counterfeiting ink layer employs multiple anti-counterfeiting methods, such as split lines, super-line patterns, and digitally encrypted graphics, making it extremely difficult to counterfeit using high-definition scanning technology. The milky white film in the middle, as a surface whiteness enhancement layer, effectively reduces the impact of the aluminized film on the product's whiteness, improving the whiteness of the printed pattern and the contrast of the anti-counterfeiting pattern. The aluminized film, as a food contact layer and heat-sealing layer, effectively reduces the oxygen barrier and vapor transmission of the packaging film, extending the product's shelf life. Simultaneously, it lowers the initial heat-sealing temperature of the packaging film, ensuring the integrity of the seal during high-speed processing in packaging machines and increasing the processing speed of the packaging film on packaging equipment. The use of multiple anti-counterfeiting patterns, milky white film, and aluminized film ultimately achieves the goal of protecting the quality of the candy's contents while providing an appearance that is difficult to imitate in the market. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the high-barrier, multi-layer anti-counterfeiting, high-speed packaging film of this utility model;

[0019] Figure 2 This is a schematic diagram of the anti-counterfeiting pattern of the anti-counterfeiting ink layer of this utility model.

[0020] Explanation of icon numbers:

[0021] 1. Printed substrate layer; 2. Anti-counterfeiting ink layer; 201. Split line; 202. Ultra-high density background pattern; 203. Digital encrypted graphics; 3. Adhesive layer; 4. Milky white film; 5. Adhesive layer; 6. Aluminum-plated film. Detailed Implementation

[0022] The present invention will now be described in further detail.

[0023] This invention uses polyester film as the printing substrate. After multiple printing processes, the surface printed pattern features split lines, super-line backgrounds, and digital anti-counterfeiting graphics. By using a composite milky white PE film, the whiteness index of the white area on the surface is further improved. Then, by using a composite aluminized high-barrier, ultra-low temperature CPP film, the metal aluminization can effectively shield water vapor and oxygen, while protecting the aroma of the contents from escaping. This achieves the functions of low-temperature heat sealing, ultra-high barrier, and aroma preservation of the composite packaging film.

[0024] See Figure 1 The high-barrier, multi-layer anti-counterfeiting, high-speed packaging film provided by this utility model includes a printing substrate layer (1), an anti-counterfeiting ink layer (2), an adhesive layer (3), a milky white film (4), an adhesive layer (5), and an aluminum-plated film (6) arranged sequentially from the outside to the inside.

[0025] In this embodiment, the printed substrate layer (1) is a BOPET film with a thickness of 11-13 micrometers. It is prepared from polyester resin through melting, casting, and stretching, and is purchased from Jiangsu Sanfangxiang Polymer Materials Co., Ltd., etc. The anti-counterfeiting ink layer (2) is obtained by repeatedly printing anti-counterfeiting patterns on the corona-exposed surface of the BOPET film using a specially manufactured gravure printing roller and then drying. The anti-counterfeiting ink layer (2) has at least two anti-counterfeiting patterns among split lines (201), super-line background (202), and digital encrypted graphics (203). A preferred embodiment is that all three patterns are present, maximizing the difficulty of counterfeiting. Figure 2 The milky white film (4) is a milky white PE film with a thickness of 12-18 micrometers. It is obtained by mixing polyethylene resin with milky white masterbatch in a certain proportion, then blowing and cooling it through a blown film machine. The aluminized film (6) is an aluminized CPP film with a thickness of 20-30 micrometers. It is obtained by casting and cooling polypropylene resin, then passing it through an aluminizing equipment to coat the surface with an aluminum foil. The adhesive layers (3) and (5) are commercially available solvent-free polyurethane adhesives. They are precisely coated using a five-roll coating system of a solvent-free laminating machine to achieve the composite of multiple substrates.

[0026] Testing has shown that the anti-counterfeiting patterns printed on the surface of the high-barrier, multi-layered anti-counterfeiting high-speed packaging film provided by this invention can achieve the following: ① They cannot be copied using high-definition scanning technology; ② Sellers can quickly and accurately identify the authenticity of goods using reading tools. Furthermore, by selecting aluminized CPP film with high barrier properties and a low sealing temperature, and after lamination with solvent-free polyurethane adhesive and curing, the oxygen permeability of the packaging film is <5.0 cm⁻¹. 3 / (m 2 •d•0.1MPa), water vapor transmission rate <0.5g / m 2 ·d. At the same time, the heat-sealing starting temperature of the packaging film is <90℃, which can realize high-speed packaging processing on the packaging machine. The intermediate milky white film is selected as milky white PE film. After being laminated with solvent-free polyurethane adhesive, it is combined with the white ink of gravure printing, which can effectively reduce the influence of composite aluminized CPP film on the whiteness of the product. The split lines, super-line background and surface patterns other than digital encrypted graphics on the anti-counterfeiting ink layer (2) form white areas, and the whiteness index of the white areas is controlled at 75-85%.

[0027] The following is a method for preparing the high-barrier, multi-layer anti-counterfeiting, high-speed packaging film of this invention, including the following steps:

[0028] 1) Design anti-counterfeiting patterns, determine the split lines, super-line background patterns and digital encrypted graphics based on the pattern design, and carry out intaglio printing roller engraving production;

[0029] 2) Install the printing rollers on the printing press in sequence, set the drying temperature to 60-80℃, and print the pattern on the corona-treated surface of the BOPET film in sequence. Print the multi-layer anti-counterfeiting ink design onto the BOPET film in sequence, and dry and cure to obtain the anti-counterfeiting pattern.

[0030] 3) On the corona-treated surface of the milky white PE film, the adhesive is applied to the corona-treated surface of the milky white PE film through the five-roll coating system of the solventless laminating machine. After passing through the laminating pressure roller, it is bonded to the printed ink surface of the BOPET film under a pressure of 0.3 to 0.5 MPa. The adhesive is cured and heated at 35 to 45°C for 12 to 36 hours.

[0031] 4) On the corona-treated surface of the milky white PE film of the composite film semi-finished product, the adhesive is applied to the corona-treated surface of the milky white PE film through the five-roll coating system of the solventless laminating machine. After passing through the composite pressure roller, it is bonded to the aluminized corona-treated surface of the aluminized CPP film under a pressure of 0.3 to 0.5 MPa. The adhesive is cured and heated at 35 to 45°C for 24 to 48 hours.

[0032] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural transformations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A high-barrier, multi-layered anti-counterfeiting, high-speed packaging film, characterized in that: It includes a printing substrate layer (1), an anti-counterfeiting ink layer (2), an adhesive layer (3), a milky white film (4), an adhesive layer (5), and an aluminum-plated film (6) arranged sequentially from the outside to the inside; the anti-counterfeiting ink layer (2) is provided with split lines (201), super line background (202), and digital encrypted graphics (203), and the multi-layer anti-counterfeiting ink layer (2) is obtained by printing sequentially by gravure printing roller; The milky white film (4) is a milky white PE film; The aluminized film (6) is an aluminized CPP film.

2. The high-barrier, multi-layered anti-counterfeiting, high-speed packaging film according to claim 1, characterized in that, The printed substrate layer (1) is a BOPET film.

3. The high-barrier, multi-layered anti-counterfeiting, high-speed packaging film according to claim 2, characterized in that, The thickness of the BOPET film is 11-13 micrometers.

4. The high-barrier, multi-layered anti-counterfeiting, high-speed packaging film according to claim 1, characterized in that, The thickness of the milky white PE film is 12-18 micrometers.

5. The high-barrier, multi-layered anti-counterfeiting, high-speed packaging film according to claim 1, characterized in that, The thickness of the aluminized CPP film is 20-30 micrometers.

6. The high-barrier, multi-layered anti-counterfeiting high-speed packaging film according to any one of claims 1-5, characterized in that, The white area is formed by the split lines, super-line background and surface patterns other than digital encrypted graphics on the anti-counterfeiting ink layer (2), and the whiteness of the white area is 75~85%.

7. The high-barrier, multi-layered anti-counterfeiting high-speed packaging film according to any one of claims 1-5, characterized in that, The oxygen permeability of the packaging film is <5.0 cm³ / (m²). 2 (d·0.1MPa), water vapor transmission rate <0.5g / m 2 ·d.

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